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Posted to commits@cassandra.apache.org by "Maneetta (JIRA)" <ji...@apache.org> on 2019/01/11 00:39:00 UTC
[jira] [Commented] (CASSANDRA-9778) CQL support for time series
aggregation
[ https://issues.apache.org/jira/browse/CASSANDRA-9778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16739901#comment-16739901 ]
Maneetta commented on CASSANDRA-9778:
-------------------------------------
Is there any ETA for getting this feature implemented production ready?
> CQL support for time series aggregation
> ---------------------------------------
>
> Key: CASSANDRA-9778
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9778
> Project: Cassandra
> Issue Type: New Feature
> Components: Feature/Materialized Views, Legacy/CQL
> Reporter: Jonathan Ellis
> Priority: Major
>
> Along with MV (CASSANDRA-6477), time series aggregation or "rollups" are a common design pattern in cassandra applications. I'd like to add CQL support for this along these lines:
> {code}
> CREATE MATERIALIZED VIEW stocks_by_hour AS
> SELECT exchange, day, day_time(1h) AS hour, symbol, avg(price), sum(volume)
> FROM stocks
> GROUP BY exchange, day, symbol, hour
> PRIMARY KEY ((exchange, day), hour, symbol);
> {code}
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